文献类型：期刊文献

中文题名：尖峰岭热带山地雨林雨季土壤的酶活性特征及其影响因子

英文题名：Soil Enzyme Activities and Their Influencing Factors in the Tropical Montane Rain Forest in the Rainy Season in Jianfengling, Hainan

作者：许全[1] 杨怀[2,3] 杨秋[1] 蒋亚敏[1] 张书齐[1] 刘文杰[1]

第一作者：许全

机构：[1]海南大学热带农林学院,海口570228;[2]国际竹藤中心,北京100102;[3]中国林业科学研究院热带林业研究所尖峰岭森林生态系统研究站,海南乐东510520

年份：2019

卷号：10

期号：4

起止页码：387-395

中文期刊名：热带生物学报

外文期刊名：Journal of Tropical Biology

收录：CSTPCD

基金：国家自然科学基金地区科学基金项目(41663010);海南大学科研启动项目(kydq1604,kyqd1605);海南省自然科学基金(417050);海南省研究生创新科研课题(Hys2017-108)

语种：中文

中文关键词：热带山地雨林;土壤酶活性;冗余分析;环境因子

外文关键词：tropical montane rain forest;soil enzyme activity;redundancy analysis;environmental factors

分类号：S158

摘要：以尖峰岭热带山地雨林为研究对象,对雨季0~10 cm表层土壤蔗糖酶、脲酶、过氧化氢酶和酸性磷酸酶活性进行分析,结合地形、植被和土壤理化性质等资料,利用冗余分析方法研究土壤酶活性的主要影响因子,结果表明:(1)雨季土壤蔗糖酶、脲酶、过氧化氢酶和酸性磷酸酶活性分别在(15.36~60.94) mg·g^-1·d^-1,(0.30~0.68) mg·g^-1·d^-1,(4.77~9.90) mL·g^-1·h^-1和(0.61~1.13) mg·g^-1·h^-1之间。(2)将58个小样方划分为平地、缓坡、中坡、山脊4种地形,根据冗余分析中样方中土壤酶活性数据分布可知,坡度对土壤酶活性大小影响很大,雨季平地的脲酶、过氧化氢酶和酸性磷酸酶活性显著低于山脊(P<0.05)。土壤酶活性与植被资料和土壤理化性质的冗余分析结果表明,土壤有机碳和全氮是影响土壤酶活性的主要因子。
Topsoil(0-10 cm) samples from 58 quadrates in the rainy season were collected from a 60 ha forest dynamics plot in Jianfengling, Hainan Province, and their enzyme activities such as sucrase activity, urease activity, catalase activity, and acid phosphatase activity were determined. The major factors affecting the enzyme activities were analyzed by using redundancy analysis, taking into account data on soil physical and chemical properties, vegetation, etc. Results showed that the activities of soil sucrase, urease, catalase and acid phosphatase in the rainy season were(15.36~60.94)mg·g^-1·d^-1,(0.30~0.68) mg·g^-1·d^-1,(4.77~9.90) mL·g^-1·h^-1,(0.61~1.13) mg·g^-1·h^-1, respectively. The 58 quadrates in the forest dynamics plot were divided into four terrains: flat slope, gentle slope, moderate slope and ridge. The distribution of the enzyme activities of the quadrates in the redundancy analysis showed that slope had a great effect on the soil enzyme activities, and that the flat terrain were significantly lower in the activities of urease, catalase and acid phosphatase activities than the ridge terrain during the rainy season(P<0.05). The redundancy analysis of the relationship between soil enzyme activity and environmental factors showed that soil organic carbon and total nitrogen were the main factors affecting the soil enzyme activity.